A composite structure wave flume

Abstract

The utility model relates to wave simulation experiment technical field discloses a kind of composite structure wave flume, including water tank and the push wave board of transverse sliding connection in water tank, still include porous wave-absorbing slope, wave baffle, floating type water-stable grating and overhead floor, wave baffle is vertically set in water tank inside, and gap exists between lower end and the floor of water tank, one end of overhead floor is fixed with the front wall of water tank, and the other end extends to wave baffle place, and with wave baffle and the front wall and side wall of water tank are collectively enclosed to form experiment section, the other side of wave baffle is wave receiving area, multiple communication holes are opened in overhead floor, and communication experiment section and wave receiving area form backwater tunnel, porous wave-absorbing slope is fixed on overhead floor, and gap exists between it and wave baffle, and floating type water-stable grating is horizontally arranged in wave receiving area, the utility model can make water tank tail reach low wave reflection, no tank tail water increase, low water backflow, whole water tank water level constant, form close to real sea surface water wave power environment.

Description

Technical Field

[0001] This utility model relates to the field of wave simulation experiment technology, and in particular to a composite structure wave tank. Background Technology

[0002] In the fields of marine engineering, port design and coastal zone protection, and shipbuilding engineering, the accuracy of wave test data directly affects the optimization and success of engineering designs. Traditional wave flumes without a tail section have many shortcomings.

[0003] In wave calibration and experiments, the simple wave-damping structure at the tail of the flume is often made of materials such as gravel and sponge to create a gentle slope. When waves climb this slope, they break due to deformation in shallow water, and the water eddies within the porous material, consuming a large amount of energy. While the structure is simple, it cannot eliminate the reflection of waves with large wavelengths and heights. Due to the transport effect of long waves, it is difficult to maintain a constant dynamic average water level along the flume, resulting in a rise in water level at the front and back of the flume. This rise can also cause water to flow back directly from the tail of the flume. These phenomena can occur simultaneously or independently depending on the wave parameters. They can interfere with the experimental environment, silently altering the preset experimental parameters during the experiment, reducing experimental accuracy, and even leading to erroneous results.

[0004] Therefore, the research and development of a composite wave flume is of great significance to marine, coastal and shipbuilding engineering research. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a composite structure wave water tank.

[0006] This utility model provides a composite structure wave tank, including a water tank and a wave-pushing plate that is laterally slidably connected in the water tank, and also includes: a porous wave-damping ramp, a wave-blocking plate, a floating water-stabilizing grid and an elevated bottom plate. The wave-blocking plate is vertically installed inside the water tank, with a gap between its lower end and the bottom plate of the water tank. One end of the elevated bottom plate is fixed to the front wall of the water tank, and the other end extends to the wave-blocking plate, which together with the wave-blocking plate, the front wall and the side wall of the water tank form the experimental section. The other side of the wave-blocking plate is the wave-receiving area. Multiple connecting holes are opened on the elevated bottom plate to connect the experimental section and the wave-receiving area to form a return water channel. The porous wave-damping ramp is fixed to the elevated base plate, and there is a gap between it and the wave-breaking plate; A floating water-stabilizing grid is horizontally installed in the wave-receiving area.

[0007] Optionally, the porous wave-damping ramp includes: a wave-damping rat cage and a plastic filament permeable block. The wave-damping rat cage is a triangular ramp-shaped mesh cage made of steel bars. The plastic filament permeable block is filled inside the wave-damping rat cage. The wave-damping rat cage is fixedly connected to the elevated base plate.

[0008] Optionally, the two water tanks are symmetrically provided with concave wave-blocking grooves on their sidewalls. The wave-blocking plates are slidably connected between the two concave wave-blocking grooves. The top of the concave wave-blocking grooves extends to the top of the sidewalls of the water tanks, and its bottom end passes through the raised bottom plate, with a gap between it and the bottom of the water tanks.

[0009] Optionally, a lifting assembly is also included, comprising: two screws, two arched brackets and two nuts. The two arched brackets are fixed to the top of the side wall, and lifting holes are provided on the arched brackets. The first ends of the two screws pass through the lifting holes of the corresponding arched brackets and are fixed to the wave deflector, and the second ends extend to the top of the lifting holes and are threadedly connected to the nuts.

[0010] Optionally, the floating water-stabilizing bar includes bar sheets and buoyancy blocks. The number of buoyancy blocks is set to four, which are evenly distributed around the bar sheets. The upper surface of the bar sheets is higher than the upper surface of the buoyancy blocks.

[0011] Optionally, a metal cover plate and a water filter element are embedded in the connecting hole. The upper surface of the metal cover plate is flush with the surface of the raised base plate and is located on top of the water filter element.

[0012] Optionally, a splash guard is installed on the tail wall of the water tank. The splash guard has an arc-shaped cross-section, and its horizontal projection surface covers the cross-section of the wave-receiving area.

[0013] Optionally, a stone ramp is also included, which is fixed at the angle between the elevated base plate and the front wall of the water tank, with a slope range of 40°-70°.

[0014] Optionally, the top of the porous wave-damping slope is flush with the still water surface, while the top of the riprap slope is above the still water surface.

[0015] Optionally, multiple structural columns are provided at the lower end of the elevated floor slab.

[0016] Compared with the prior art, the technical solution provided by this utility model embodiment has the following advantages: Experimental water is injected into the water tank. The wave-pushing plate reciprocates in the water, generating waves. As the waves propagate towards the tail end of the water tank, the porous wave-damping slope guides the incident waves to climb higher and over the wave-blocking plate, falling into the wave-receiving zone. The overtopping waves collide with the floating water-stabilizing grid and break up, forming an incremental water body. The wave energy is dissipated during the breaking process, thus preventing wave reflection. The floating water-stabilizing grid separates and restricts the flow of the incremental water body, working in conjunction with the wave-blocking plate to prevent the incremental water body from directly flowing back to the water tank area in front of the wave-blocking plate, effectively eliminating the phenomenon of water accumulation and backflow at the tail end of the tank. Simultaneously, the incremental water body in the wave-receiving zone flows back to the top of the elevated base plate through the return water channel and connecting holes to balance the water level in the water tank.

[0017] By incorporating a porous wave-dissipating ramp, a wave-receiving zone, and a backflow channel, this scheme solves the problems of backflow and wave reflection at the tail of the tank in traditional flumes within a limited length and space, utilizing wave "isolation" and backflow "bypass" mechanisms. The kinetic energy of the incident wave below the water surface is dissipated by the porous wave-dissipating ramp, while the overtopping wave on the water surface cannot be reflected due to the lack of a reflective surface, and the incremental water volume generated by its breakup is effectively blocked and flows back directly. The backflow channel and connecting holes further assist in maintaining the stability of the tank water level, thereby achieving the goals of low wave reflection at the tail of the tank, no backflow at the tail, low backflow, and a constant average water level throughout the entire tank. This structure can create a hydrodynamic environment close to that of a real sea surface, suitable for physical model hydrodynamic tests in fields such as marine, coastal engineering, and shipbuilding engineering, and helps improve the consistency and accuracy of calibration and experimental waves. Attached Figure Description

[0018] Figure 1 A schematic diagram of a composite wave water tank provided in an embodiment of this utility model; Figure 2 A schematic diagram of the distribution structure of the wave-damping plate, floating water-stabilizing grid structure and porous wave-dissipating ramp 2 provided for embodiments of this utility model; Figure 3 A half-sectional view of the wave-blocking plate and its adjustment structure provided in an embodiment of this utility model; Figure 4 A schematic diagram of the cooperative structure of the wave baffle, screw, arched bracket and lifting positioning nut provided for the embodiments of this utility model; Figure 5 This is a partial cross-sectional view of the connecting hole provided in an embodiment of the present utility model; Figure 6 A schematic diagram of the structure of a metal cover plate provided in an embodiment of this utility model; Figure 7 A schematic diagram of the structure of a metal cover plate provided in an embodiment of this utility model; Figure 8 A schematic diagram of the connection structure between the wave-damping rat cage steel reinforcement structure and the perforated reinforcing plate provided in this embodiment of the utility model; Figure 9 A perspective view of a floating water-stabilizing grid provided in an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Wave pusher plate; 2. Perforated wave-damping ramp; 3. Wave-receiving area; 4. Wave-blocking plate; 5. Floating water-stabilizing grid; 6. Elevated bottom plate; 7. Return water channel; 8. Connecting hole; 9. Plastic filament permeable block; 10. Perforated rib plate; 11. Side wall; 12. Tail wall; 13. Screw; 14. Concave wave-blocking groove; 15. Arched bracket; 16. Nut; 17. Grid plate; 18. Buoyancy block; 19. Metal cover plate; 20. Water filter element; 21. Splash guard plate; 22. Structural column; 23. Wave-damping rat cage. Detailed Implementation

[0020] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] The present invention will be described below through several specific embodiments. To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and components may be omitted. When any component of an embodiment of the present invention appears in more than one drawing, the component may be represented by the same reference numerals in each drawing.

[0023] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a composite structure wave tank, including a tank and a wave-pushing plate 1 that is laterally slidably connected within the tank. It also includes: a porous wave-damping ramp 2, a wave-blocking plate 4, a floating water-stabilizing grid 5, and an elevated base plate 6. The wave-blocking plate 4 is vertically installed inside the tank, with a gap between its lower end and the bottom plate of the tank. One end of the elevated base plate 6 is fixed to the front wall, and the other end extends to the wave-blocking plate 4, forming an experimental section together with the wave-blocking plate 4, the front wall, and the side wall 11 of the tank. The other side of the wave-blocking plate 4 is a wave-receiving area 3. Multiple connecting holes 8 are provided on the elevated base plate 6, connecting the experimental section and the wave-receiving area 3 to form a return water channel 7. The porous wave-damping ramp 2 is fixed to the elevated base plate 6, with a gap between it and the wave-blocking plate 4. A floating water-stabilizing grid 5 is horizontally installed within the wave-receiving area 3.

[0024] The combination and arrangement of the components inside the water tank provided in this embodiment enable them to work together effectively. Waves are generated at the front of the tank by a wave-pushing plate 1, while at the rear, a porous wave-damping ramp 2, a wave-receiving area 3, a return water channel 7, and a connecting hole 8 work together to reduce wave reflection and facilitate direct water return. A splash guard 21 prevents water from splashing out of the tank, ensuring a constant water volume during the experiment.

[0025] Furthermore, in the above technical solution, a drive mechanism is provided on one side of the wave pusher 1, and a power source is provided at the connection end of the drive mechanism. The drive mechanism is used to push the wave pusher 1 to reciprocate in the water to generate waves. Specifically, the drive mechanism can be one of a hydraulic cylinder, an electric push rod, a pneumatic cylinder, or other telescopic components.

[0026] Experimental water is injected into the tank. The wave-pushing plate 1 reciprocates in the water, generating waves. As the waves propagate towards the tail end of the tank, the porous wave-dissipating ramp 2 guides the incident waves to climb and cross the wave-blocking plate 4, falling into the wave-receiving zone 3. The overtopping waves collide with the floating water-stabilizing grid 5 and break up, forming an incremental water body. Its wave energy is dissipated during the breaking process, thus preventing wave reflection. The floating water-stabilizing grid 5 separates and restricts the flow of the incremental water body. Working in conjunction with the wave-blocking plate 4, it prevents the incremental water body from directly flowing back to the tank area in front of the wave-blocking plate 4, effectively eliminating the phenomenon of water accumulation and backflow at the tail end of the tank. At the same time, the incremental water body in the wave-receiving zone 3 flows back to the top of the elevated bottom plate 6 through the return water channel 7 and the connecting hole 8 to balance the water level in the tank.

[0027] By incorporating a porous wave-dissipating ramp 2, a wave-receiving zone 3, and a return water channel 7, this solution addresses the issues of increased water flow and wave reflection at the tail of traditional flumes within a limited length and space. It utilizes wave "isolation" and return flow "bypass" mechanisms. The kinetic energy of the incident wave below the water surface is dissipated by the porous wave-dissipating ramp 2. Overtopping waves on the water surface, lacking a reflective surface, cannot be reflected, and the increased water volume generated by their breakage is effectively blocked and flows back directly. The return water channel 7 and connecting holes 8 further assist in maintaining a stable water level in the flume, thereby achieving the goals of low wave reflection at the tail of the flume, no increased water flow at the tail, low backflow, and a constant average water level throughout the entire flume.

[0028] Optional, see reference Figure 1 and Figure 8 The porous wave-damping ramp 2 includes: a wave-damping rat cage 23 and a plastic random filament permeable block 9. The wave-damping rat cage 23 is a triangular ramp-shaped mesh cage made of steel bars. The plastic random filament permeable block 9 is filled inside the wave-damping rat cage 23. The wave-damping rat cage 23 is fixedly connected to the overhead base plate 6.

[0029] Specifically, the wave-damping cage 23 is a triangular ramp-shaped mesh cage made of steel bars, and the interior of the wave-damping cage 23 is filled with perforated plastic filament permeable blocks 9. The bottom front end of the wave-damping cage 23 is provided with a perforated reinforcing plate 10, which is fixedly connected to the overhead base plate 6 by bolts passing through the perforated reinforcing plate 10. After installation, the porous wave-damping ramp 2 is structurally stable, ensuring that it is not pushed backward or vibrated back and forth by the incident wave, while the perforated plastic filament permeable blocks 9 are not easy to move or fall apart. The wave-damping cage 23 and its interior filled with densely porous perforated plastic filament permeable blocks 9 reduce and dissipate the underwater kinetic energy of the incoming wave. The porous wave-damping ramp 2 guides the incident wave to climb over the wave-blocking plate 4 and fall into the wave-receiving zone 3. The overtopping wave collides with the floating water-stabilizing grid 5 and breaks up, forming an increase in water volume in the wave-receiving zone 3. The overtopping wave energy is dissipated in the breaking up and cannot form wave reflection. The floating water-stabilizing grid 5 restricts the flow of incremental water and, together with the wave deflector 4, prevents the incremental water from flowing directly back into the water tank in front of the wave deflector 4, thus eliminating the increase in water at the tail of the tank and the backflow of the increased water. At the same time, the incremental water in the wave receiving area 3 flows back to the top of the elevated bottom plate 6 of the water tank through the return water channel 7 and the connecting hole 8, balancing the water level in the water tank.

[0030] Furthermore, the permeable plastic filament block 9 uses thermoplastic synthetic resin as the main raw material, fusing plastic filaments in a hot-melt state to form a three-dimensional porous structure. Its effect is that when water carrying wave energy passes through the porous block, friction, vortices, and jets are generated, while repeated transmission and reflection convert the wave's kinetic energy into heat energy, rapidly weakening the wave energy. Simultaneously, its porous slope structure alters the wave's propagation speed and direction, causing waves to enter the shallow water deformation zone earlier, leading to premature wave breakage during ascent. Waves are also more prone to breakage during ascent, further dissipating energy.

[0031] Optional, see reference Figure 3 and Figure 4 The two water tanks have concave wave-blocking grooves 14 symmetrically opened on the sidewalls 11. The wave-blocking plate 4 is slidably connected between the two concave wave-blocking grooves 14. The top of the concave wave-blocking groove 14 extends to the top of the sidewall 11 of the water tank, and its bottom end passes through the overhead base plate 6, with a gap between it and the bottom of the water tank.

[0032] Specifically, vertical concave wave-blocking grooves 14 are provided at the front of the wave-receiving area 3 and at the positions of the side walls 11 of the water tank on both sides. Wave-blocking plates 4 are embedded between two opposing concave wave-blocking grooves 14 and can slide vertically together. The longitudinal length of the wave-blocking plate 4 is less than the longitudinal length of the concave wave-blocking groove 14. The concave wave-blocking grooves 14 are vertically distributed, with their tops extending to the top of the side walls 11 of the water tank, and their bottoms passing through the raised bottom plate 6 but not touching the bottom of the return water channel 7. The length of the concave wave-blocking grooves 14 is designed to ensure sufficient lifting space for the wave-blocking plates 4. If the lifting space is insufficient, wave-blocking plates 4 of different heights can be replaced as needed. The height of the wave-blocking plates 4 is set slightly above the still water level to block the backflow of water bodies exceeding the still water surface.

[0033] The wave-blocking plate 4 is a rectangular metal plate, and a gap is reserved between the wave-damping cage 23 and the wave-blocking plate 4. The wave-receiving area 3 is a cuboid space enclosed by the wave-blocking plate 4, the side wall 11 of the water tank, and the tail wall 12 of the water tank.

[0034] Optional, see reference Figure 3 and Figure 4 It also includes a lifting assembly, which includes two screws 13, two arched brackets 15 and two nuts 16. The two arched brackets 15 are fixed to the top of the side wall 11. The arched brackets 15 are provided with lifting holes. The first ends of the two screws 13 pass through the lifting holes of the corresponding arched brackets 15 and are fixed to the wave deflector 4. The second ends extend to the top of the lifting holes and are threaded to the nuts 16.

[0035] Specifically, screws 13 are installed at the top of the wave deflector 4 and at the corresponding positions of the concave wave deflector grooves 14 on both sides. The screws 13 are vertically embedded inside the concave wave deflector grooves 14. Arched brackets 15 are fixedly connected to the top of the side walls 11 of the water tanks on both sides. A lifting hole is provided at the center of the top of the arched bracket 15, and the screws 13 are movably inserted into the inner side of the corresponding lifting hole. A lifting and positioning nut 16 is threaded onto the outer side of the screws 13 at the top of the lifting hole. Specifically, as shown in the figure... Figure 4 As shown, the arched support 15 is a steel arch bridge structure. The base of the arched support 15 is fixed to the top surface of the side wall 11 of the water tank by pre-embedded bolts. Two screw rods 13 are vertically suspended from the arched support 15 through lifting holes, and the height of the screw rods 13 is controlled by the lifting positioning nut 16, allowing the wave baffle 4 to be adjusted in height. The wave baffle 4 is installed in the concave wave baffle groove 14, limiting its horizontal displacement and maintaining vertical stability by its own weight, ensuring it remains stationary under wave impact. To adapt to different water level experiments, the raising and lowering of the wave baffle 4 is limited by the screw rods 13 and the lifting positioning nut 16 on the arched support 15.

[0036] Optional, see reference Figure 1 and Figure 9The floating water-stabilizing bar 5 includes bar sheets 17 and buoyancy blocks 18. The number of buoyancy blocks 18 is set to four, and the four buoyancy blocks 18 are evenly distributed around the bar sheets 17. The upper surface of the bar sheets 17 is higher than the upper surface of the buoyancy blocks 18.

[0037] Specifically, the floating water stabilizing grid 5 has gaps around its perimeter and the inner wall of the wave-receiving zone 3. The floating water stabilizing grid 5 includes grid plates 17 and buoyancy blocks 18. The number of buoyancy blocks 18 is set to four, and the four buoyancy blocks 18 are evenly distributed around the grid plates 17. The upper surface of the grid plates 17 is slightly higher than the upper surface of the buoyancy blocks 18. The floating water stabilizing grid 5 floats on the water surface. By adjusting the buoyancy blocks 18 to keep the grid plates 17 horizontal with the water surface, it can be ensured that the water falling into the wave-receiving zone 3 falls between the grid plates 17 and is broken.

[0038] Optional, see reference Figure 5 The connecting hole 8 is fitted with a metal cover plate 19 and a water filter element 20. The upper surface of the metal cover plate 19 is flush with the bed surface of the raised base plate 6 and is located on top of the water filter element 20.

[0039] Specifically, a metal cover plate 19 and a water filter element 20 are embedded in the connecting hole 8, and the metal cover plate 19 is located on top of the water filter element 20, as shown in the reference. Figure 6 and Figure 7 The metal cover 19 can be a porous permeable cover or a non-porous impermeable cover. Specifically, to prevent the experimental model from being affected by the bottom water flow, the porous permeable cover and the non-porous impermeable cover in the connecting hole 8 at the bottom of the model can be replaced. When a porous permeable cover is used, the return water channel 7 is connected to the water tank through the connecting hole 8; when a non-porous impermeable cover is used, the connecting hole 8 can be blocked, thus preventing the return water channel 7 from connecting to the water tank. The upper surface of the metal cover 19 laid on the top of the connecting hole 8 is flush with the bed surface of the raised base plate 6, ensuring that water wave propagation is unobstructed by the bed. In this embodiment, the water filter element 20 is made of plastic random filament permeable material, which can reduce the pulse water flow in the connecting hole 8 and ensure a stable water flow.

[0040] Optional, see reference Figure 1 A splash guard 21 is installed on the tail wall 12 of the water tank. The cross-sectional shape of the splash guard 21 is set to arc shape, and the horizontal projection surface of the splash guard 21 covers the cross-section of the wave-receiving area 3.

[0041] Specifically, the splash guard 21 has an arc-shaped cross-section, and one end of the splash guard 21 away from the tail wall 12 of the water tank extends directly above the wave deflector 4. The splash guard 21 is fixed to the top surface of the tail wall 12 of the water tank and is supported by the support frame provided on the side walls 11 of the two water tanks, and the horizontal projection surface of the splash guard 21 covers the cross-section of the wave-receiving area 3.

[0042] Optional, see reference Figure 1It also includes a stone ramp, which is fixed at the angle between the suspended base plate 6 and the front wall of the water tank. The slope of the stone ramp ranges from 40° to 70°.

[0043] Specifically, a stone-piled slope is provided at the end of the elevated base plate 6 away from the porous wave-damping ramp 2. The stone-piled slope is fixed at the angle between the elevated base plate 6 and the front wall of the water tank. The stone-piled slope is located between the front of the water tank and the wave-pushing plate 1. It is used to break up unwanted wake waves between the wave-pushing plate 1 and the front of the water tank, preventing them from forming interfering reflections and splashes within the limited water tank space, and ensuring the purity and controllability of the waves in the experimental section. The slope of the stone-piled slope is set in the range of 40°-70°. Designing a stone-piled slope with a larger slope is beneficial for saving space.

[0044] Optional, see reference Figure 1 The top of the porous wave-damping slope 2 is in contact with the still water surface, while the top of the stone-built slope is located above the still water surface.

[0045] Specifically, the top of the porous wave-damping slope 2 is flush with the still water surface. The top of the riprap slope is located above the still water surface, and the slope of the riprap slope is generally greater than that of the porous wave-damping slope 2. The height of the porous wave-damping slope 2 is basically the same as that of the wave-breaking plate 4, guiding the incident wave to climb and overcome the wave without obstruction. For experiments at different water levels, the rat cage can be replaced or the slope of the wave-damping rat cage 23 can be changed.

[0046] Optional, see reference Figure 1 Multiple structural columns 22 are provided at the lower end of the elevated base plate 6.

[0047] Specifically, multiple structural columns 22 are installed inside the return water channel 7 to support the elevated base plate 6 and the bottom wall of the water tank, i.e., the bottom wall of the return water channel 7, to ensure the stability of the water tank structure.

[0048] Furthermore, the tail wall 12 of the water tank opposite the front wall of the water tank, the front section of the side wall 11 of the water tank located at the front end of the wave pusher 1, the tail section of the side wall 11 of the water tank located at the wave receiving zone 3, the tail wall 12 of the water tank, and the bottom plate of the return water channel 7 are all constructed of concrete; the side wall 11 of the water tank located in the experimental section in the middle of the water tank is constructed of steel frame and glass to facilitate experimental observation; the elevated bottom plate 6 is made of reinforced concrete to ensure strength; the structural column 22 plays a load-bearing support role and can be constructed in various forms, but it is necessary to ensure the continuity of water flow and pressure in the horizontal direction; the stone-piled slope uses larger stones that cannot be pushed by the wake wave, and there are no strict requirements on the specific weight and shape, as long as it is ensured that the broken wake wave does not splash out.

[0049] Experimental water is injected into the water tank until the liquid level is above the top of the porous wave-damping ramp 2, reaching the still water level. A floating water-stabilizing grid 5 is placed in the wave-receiving zone 3, with its top surface flush with the still water surface. Driven by a power source, the wave-pushing plate 1 moves back and forth in the water to generate waves. As the waves propagate towards the tail end of the water tank, they are guided by the porous wave-damping ramp 2 and the wave-blocking plate 4 to climb up and cross the waves without obstruction, entering the wave-receiving zone 3. The splashing water is blocked by the splash guard 21. At the rear of the water tank, the plastic filament permeable block 9 in the wave-damping cage 23, the wave-receiving zone 3, the return water channel 7, and the connecting hole 8 work together to reduce wave reflection and increase water direct return. The connecting path from the wave-receiving zone 3 to the return water channel 7 to the connecting hole 8 to the main water storage area on the inner side of the water tank always balances the average water level of the water tank.

[0050] The above-described embodiments are merely a few specific examples of this utility model. However, the embodiments of this utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A composite wave tank, comprising a tank and a wave-pushing plate laterally slidably connected within the tank, characterized in that, It also includes: porous wave-damping ramps, wave-blocking plates, floating water-stabilizing grids, and elevated bottom plates; The wave-blocking plate is vertically installed inside the water tank, with a gap between its lower end and the bottom plate of the water tank. One end of the elevated bottom plate is fixed to the front wall of the water tank, and the other end extends to the wave-blocking plate, forming an experimental section together with the wave-blocking plate, the front wall and the side wall of the water tank. The other side of the wave-blocking plate is the wave-receiving area. Multiple connecting holes are provided on the elevated bottom plate to connect the experimental section and the wave-receiving area to form a return water channel. The porous wave-damping ramp is fixed to the overhead base plate, and there is a gap between it and the wave-breaking plate. A floating water-stabilizing grid is horizontally installed in the wave-receiving area.

2. The composite wave tank as described in claim 1, characterized in that, The porous wave-damping ramp includes: a wave-damping rat cage and a plastic filament permeable block. The wave-damping rat cage is a triangular ramp-shaped mesh cage made of steel bars. The plastic filament permeable block is filled inside the wave-damping rat cage. The wave-damping rat cage is fixedly connected to the elevated base plate.

3. The composite wave tank as described in claim 1, characterized in that, The two water tanks have symmetrically provided concave wave-blocking plate slots on their sidewalls. The wave-blocking plates are slidably connected between the two concave wave-blocking plate slots. The top of the concave wave-blocking plate slots extends to the top of the sidewall of the water tank, and its bottom end passes through the suspended bottom plate, with a gap between it and the bottom of the water tank.

4. The composite wave tank as described in claim 3, characterized in that, It also includes a lifting assembly, which includes two screws, two arched brackets and two nuts. The two arched brackets are fixed to the top of the side wall and have lifting holes. The first ends of the two screws pass through the lifting holes of the corresponding arched brackets and are fixed to the wave deflector, and the second ends extend to the top of the lifting holes and are threaded to the nuts.

5. The composite wave tank as described in claim 1, characterized in that, The floating water-stabilizing bar includes bar sheets and buoyancy blocks. The number of buoyancy blocks is set to four, and the four buoyancy blocks are evenly distributed around the bar sheets. The upper surface of the bar sheets is higher than the upper surface of the buoyancy blocks.

6. The composite wave tank as described in claim 1, characterized in that, The connecting hole is fitted with a metal cover plate and a water filter element. The upper surface of the metal cover plate is flush with the surface of the raised base plate and is located on top of the water filter element.

7. The composite wave tank as described in claim 1, characterized in that, A splash guard is installed on the tail wall of the water tank. The splash guard has an arc-shaped cross-section, and its horizontal projection surface covers the cross-section of the wave-receiving area.

8. The composite wave tank as described in claim 1, characterized in that, It also includes a stone ramp, which is fixed at the angle between the elevated base plate and the front wall of the water tank, and the slope of the stone ramp is in the range of 40°-70°.

9. The composite wave tank as described in claim 8, characterized in that, The top of the porous wave-damping slope is in contact with the still water surface, while the top of the stone-built slope is located above the still water surface.

10. The composite wave tank as described in claim 1, characterized in that, The lower end of the elevated base plate is provided with multiple structural columns.

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